Siiveb-machteie



UNITED STATES PATENT OFFICE.

FREDERIC T. GRANT, OF GARDINER, MAINE.

SLIVEBi-MAGHINE.

Specification of Letters Patent No. 28,470, dated May 29, 1880.

To all 'whom 'it may concern:

Beit known that I, FREDERIC T. GRANT, of Gardiner, in the county of Kennebec and State of Maine, have invented a new and useful Machine for Makin Slivers of Fine Shavings of Wood for Up olste and Various other Uses; and I do here y decla-re that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1 is a plan view of machine. Fig. 2 is a side elevation. Fig. 3 is a side sectional elevation. Fig. 4: are sectional and facial views of slidin block A. Figl is a sectional View of sli in block A, s owing osition of slitters w, a so beveled slot in which said slitters are placed.

The nature of my invention consists in the peculiar construction of the machine whereby the wood to be manufactured into slivers or line shavings is rmly held and regularly moved up and brought in contact with the slitters and cutting knife in sliding block A. Also the form anu arrangement of slitters a: whereby the wood is cut or slit in ine and uniform widths, without liability of clogging. Also the peculiar form of the lowei` end of cap o, o, attached to cutter knife c c, whereby the sliver or shaving is curled or twisted.

To enable others skilled in the art, to make and use my invention, I will proceed to describe its construction and operation.

I-n drawing Fie. 1, is sliding block A, to which is attache cutting knife c c and slitf ters which block is moved up and down between slides d, being connected to crank on balance wheel E, by rod F.

G, G, are feed rolls, grooved lengthwise, for holding and feeding up the wood to be slit and cut to block A, which feed rolls are moved and operated b worms H, H, on shaft I to which shaft is attached ratchet Wheel which is moved a proper distance every revolution of balance wheel E, b operation of cam L, through rod m, and evers n, n, thus moving feed rolls at proper time and proper distance.

Upper feed roll G, is capable of being raise or `lowered by gear wheels o, o, to vary the distance between feed rolls to accommodate the various lengths of wood to be manufactured.

p p, are ressure bars secured between the feed rolls (if), G and sliding block A, for the urpose of holding the wood being manuactured after it has been released from feed rolls G, G, so as to allow it to be moved orward by the succeeding piece of wood placed between feed rolls, thereby allowing the same to be all worked up.

In drawing Fi 2 are shown gear wheels on feed rolls G, also worms and ratchet wheel on shaft I. Also cam L, on shaft K, with connecting rod m, and levers n, n. Also gear wheel o used for raising upper feed roll G.

In drawing Fig. 3 are shown position of wood in rocess of being manufactured (marked being held in position by feed rolls G, G. Also section of slidin block A, showing position of cutting 1mi e c c and slitters w.

In drawings Figs. 4 and 5 are shown more distinctly the form and position of cuttn knife o, c, with cap g, g, attached; also o slitters m. Cutting knife c, c, is in form of common plane iron, with cap with concave end as shown in Fig. 7, attached. Slitters w are mede of a suitable metal for obtaining a cuttin edge and of a corresponding thickness to e width of sliver or shaving desired to be made, and are placed, with cutting points alternately reversed, in slot in sliding lock A, said slot having a beveled or en larged mouth at point 10 in Fig. and are con ned there by screw or otherwise.

The object of the beveled or enlarged mouth the slot in which the slitters :c are placed is to allow the dust and waste to pass freely from said slitters, thereby preventing them from gettintgl clogged.

The object of e concave end of cap o, o, is to cause the sliver or shaving to be more closely curled or twisted as it comes from the wood.

What I claim and desire to secure by Letters Patent, is.-

The combination of the feed rolls G, G, o erated by worms H, H, and cam L, or tieir equivalents, and pressure bars p, p, for the purposes specified.

FREDERIC T. GRANT.

Witnesses:

Cms. B. CLA?, Cms. P. WAL'roN. 

